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-rw-r--r--sysdeps/libm-ieee754/s_cexp.c63
-rw-r--r--sysdeps/libm-ieee754/s_remquo.c60
-rw-r--r--sysdeps/libm-ieee754/s_remquof.c56
3 files changed, 121 insertions, 58 deletions
diff --git a/sysdeps/libm-ieee754/s_cexp.c b/sysdeps/libm-ieee754/s_cexp.c
new file mode 100644
index 0000000000..46f9f612eb
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_cexp.c
@@ -0,0 +1,63 @@
+/* Return value of complex exponential function for double complex value.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <complex.h>
+#include <math.h>
+
+
+__complex__ double
+__cexp (__complex__ double x)
+{
+ __complex__ double retval;
+
+ if (isfinite (__real__ x))
+ {
+ if (isfinite (__imag__ x))
+ {
+ retval = __exp (__real__ x) * (__cos (__imag__ x)
+ + 1i * __sin (__imag__ x));
+ }
+ else
+ /* If the imaginary part is +-inf or NaN and the real part is
+ not +-inf the result is NaN + iNan. */
+ retval = __nan ("") + 1.0i * __nan ("");
+ }
+ else if (__isinf (__real__ x))
+ {
+ if (isfinite (__imag x))
+ {
+ if (signbit (__real__ x) == 0 && __imag__ x == 0.0)
+ retval = HUGE_VAL;
+ else
+ retval = ((signbit (__real__ x) ? 0.0 : HUGE_VAL)
+ * (__cos (__imag__ x) + 1i * __sin (__imag__ x)));
+ }
+ else if (signbit (__real__ x))
+ retval = HUGE_VAL + 1.0i * __nan ("");
+ else
+ retval = 0.0;
+ }
+ else
+ /* If the real part is NaN the result is NaN + iNan. */
+ retval = __nan ("") + 1.0i * __nan ("");
+
+ return retval;
+}
+weak_alias (__cexp, cexp)
diff --git a/sysdeps/libm-ieee754/s_remquo.c b/sysdeps/libm-ieee754/s_remquo.c
index 5a96f75f3b..53f26c6d89 100644
--- a/sysdeps/libm-ieee754/s_remquo.c
+++ b/sysdeps/libm-ieee754/s_remquo.c
@@ -29,71 +29,71 @@ static const double zero = 0.0;
double
__remquo (double x, double y, int *quo)
{
- int32_t hx,hp;
- u_int32_t sx,lx,lp;
- int cquo;
+ int32_t hx,hy;
+ u_int32_t sx,lx,ly;
+ int cquo, qs;
EXTRACT_WORDS (hx, lx, x);
- EXTRACT_WORDS (hp, lp, p);
+ EXTRACT_WORDS (hy, ly, y);
sx = hx & 0x80000000;
- qs = (sx ^ (hp & 0x80000000)) >> 31;
- hp &= 0x7fffffff;
+ qs = sx ^ (hy & 0x80000000);
+ hy &= 0x7fffffff;
hx &= 0x7fffffff;
/* Purge off exception values. */
- if ((hp | lp) == 0)
- return (x * p) / (x * p); /* p = 0 */
+ if ((hy | ly) == 0)
+ return (x * y) / (x * y); /* y = 0 */
if ((hx >= 0x7ff00000) /* x not finite */
- || ((hp >= 0x7ff00000) /* p is NaN */
- && (((hp - 0x7ff00000) | lp) != 0)))
- return (x * p) / (x * p);
+ || ((hy >= 0x7ff00000) /* p is NaN */
+ && (((hy - 0x7ff00000) | ly) != 0)))
+ return (x * y) / (x * y);
- if (hp <= 0x7fbfffff)
+ if (hy <= 0x7fbfffff)
{
- x = __ieee754_fmod (x, 8 * p); /* now x < 8p */
+ x = __ieee754_fmod (x, 8 * y); /* now x < 8y */
- if (fabs (x) >= 4 * fabs (p))
+ if (fabs (x) >= 4 * fabs (y))
cquo += 4;
}
- if (((hx - hp) | (lx - lp)) == 0)
+ if (((hx - hy) | (lx - ly)) == 0)
{
*quo = qs ? -1 : 1;
return zero * x;
}
x = fabs (x);
- p = fabs (p);
+ y = fabs (y);
cquo = 0;
- if (x >= 2 * p)
+ if (x >= 2 * y)
{
- x -= 4 * p;
+ x -= 4 * y;
cquo += 2;
}
- if (x >= p)
+ if (x >= y)
{
- x -= 2 * p;
+ x -= 2 * y;
++cquo;
}
- if (hp < 0x00200000)
+ if (hy < 0x00200000)
{
- if (x + x > p)
+ if (x + x > y)
{
- x -= p;
- if (x + x >= p)
- x -= p;
+ x -= y;
+ if (x + x >= y)
+ x -= y;
}
}
else
{
- double p_half = 0.5 * p;
- if(x > p_half)
+ double y_half = 0.5 * y;
+ if(x > y_half)
{
- x -= p;
- if (x >= p_half)
- x -= p;
+ x -= y;
+ if (x >= y_half)
+ x -= y;
}
}
diff --git a/sysdeps/libm-ieee754/s_remquof.c b/sysdeps/libm-ieee754/s_remquof.c
index cce5495ce8..0968fe650b 100644
--- a/sysdeps/libm-ieee754/s_remquof.c
+++ b/sysdeps/libm-ieee754/s_remquof.c
@@ -29,70 +29,70 @@ static const float zero = 0.0;
float
__remquof (float x, float y, int *quo)
{
- int32_t hx,hp;
+ int32_t hx,hy;
u_int32_t sx;
- int cquo;
+ int cquo, qs;
GET_FLOAT_WORD (hx, x);
- GET_FLOAT_WORD (hp, p);
+ GET_FLOAT_WORD (hy, y);
sx = hx & 0x80000000;
- qs = (sx ^ (hp & 0x80000000)) >> 31;
- hp &= 0x7fffffff;
+ qs = sx ^ (hy & 0x80000000);
+ hy &= 0x7fffffff;
hx &= 0x7fffffff;
/* Purge off exception values. */
- if (hp == 0)
- return (x * p) / (x * p); /* p = 0 */
+ if (hy == 0)
+ return (x * y) / (x * y); /* y = 0 */
if ((hx >= 0x7f800000) /* x not finite */
- || (hp > 0x7f800000)) /* p is NaN */
- return (x * p) / (x * p);
+ || (hy > 0x7f800000)) /* y is NaN */
+ return (x * y) / (x * y);
- if (hp <= 0x7dffffff)
+ if (hy <= 0x7dffffff)
{
- x = __ieee754_fmodf (x, 8 * p); /* now x < 8p */
+ x = __ieee754_fmodf (x, 8 * y); /* now x < 8y */
- if (fabs (x) >= 4 * fabs (p))
+ if (fabs (x) >= 4 * fabs (y))
cquo += 4;
}
- if ((hx - hp) == 0)
+ if ((hx - hy) == 0)
{
*quo = qs ? -1 : 1;
return zero * x;
}
x = fabsf (x);
- p = fabsf (p);
+ y = fabsf (y);
cquo = 0;
- if (x >= 2 * p)
+ if (x >= 2 * y)
{
- x -= 4 * p;
+ x -= 4 * y;
cquo += 2;
}
- if (x >= p)
+ if (x >= y)
{
- x -= 2 * p;
+ x -= 2 * y;
++cquo;
}
- if (hp < 0x01000000)
+ if (hy < 0x01000000)
{
- if (x + x > p)
+ if (x + x > y)
{
- x -= p;
- if (x + x >= p)
- x -= p;
+ x -= y;
+ if (x + x >= y)
+ x -= y;
}
}
else
{
- float p_half = 0.5 * p;
- if(x > p_half)
+ float y_half = 0.5 * y;
+ if(x > y_half)
{
- x -= p;
- if (x >= p_half)
- x -= p;
+ x -= y;
+ if (x >= y_half)
+ x -= y;
}
}
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